The porter was sent for and questioned. He knew M. Dangle well and recognized his photograph. He had been present in the hall when the gentleman left on the previous day, shortly before two o’clock. M. Dangle had walked out of the hotel with his suitcase in his hand, declining the porter’s offer to carry it for him or call a taxi. The trams, however, passed the door, and the porter had assumed M. Dangle intended to travel by that means. No, he had not noticed the direction he took. There was a “stillstand” or tramway halt close by. Dangle had not talked to the porter further than to wish him good-day when he met him. He had not asked questions, or given any hint of his business in the town. Following his usual procedure under such circumstances, French next asked for interviews with all those of the staff who had come in any way in contract with his quarry, but in spite of his most persistent efforts he could not extract a single item of information as to the man’s business or movements. Baffled and weary from his journey, French took his hat and went out in the hope that a walk through the streets of the fine old city would clear his brain and bring him the inspiration he needed. Crossing beneath the trees of the Place Verte, he passed round the cathedral to the small square from which he could look up at the huge bulk of the west front, with its two unequal towers, one a climbing marvel of decoration, “lace in stone,” the other unfinished, and topped with a small and evidently temporary spire. Then, promising himself a look round the interior before leaving the town, he regained the tramline from the Place Verte, and following it westwards, in two or three minutes came out on the great terraces lining the banks of the river. The first sight of the Scheldt was one which French felt he would not soon forget. Well on to half a mile wide, it bore away in both directions like a great highway leading from this little Belgium to the uttermost parts of the earth. Large ships lay at anchor in it, as well as clustering along the wharves to the south. This river frontage of wharves and sheds and cranes and great steamers extended as far as the eye could reach; he had read that it was three and a half miles long. And that excluded the huge docks for which the town was famous. As he strolled along he became profoundly impressed, not only with the size of the place, but more particularly with the attention which had been given to its artistic side. In spite of all this commercial activity the city did not look sordid. Thought had been given to its design; one might almost say loving care. Why, these very terraces on which he was walking, with their cafés and their splendid view of the river, were formed on neither more nor less than the vast roofs of the dock sheds. French, who knew most of the English ports, felt his amazement grow at every step.